A friend sent me this blog entry from Createquity, a blog about arts in society that occasionally dabbles in critiquing the field of economics. The entry makes the case that economics is flawed in how it values welfare, and that economists don’t care about poor people.
I generally agree that economics does not value welfare perfectly—as, I would guess, many economists would as well. A basic tenant of economics is that we can’t directly measure utility (I covered this in my intro to econ class, anyway). We know there are some rules that define the relationship between utility and the price we are willing to pay for things. For example, if a person is willing to pay more for an apple than an orange, we assume the apple had greater utility to that person than the orange. So we use the amount that people are willing to pay for things as an imperfect proxy for utility.
As this relates to poverty, economists do know there are declining returns to income/consumption. Imagine you give a child $1, and she buys a doll. You give her another $1, and she buys candy. Since she chose to buy the doll first, she must value the doll more than the candy, so the first $1 was of greater value to her than the second $1. The difference in those values will be starker when comparing the first $1 of income that a person spends on food or shelter to the millionth $1 of income that the person spends on a designer purse.
While we can recognize these things in individual situations, it is very hard to account for them more broadly. The author compares a poor consumer to a rich consumer who are both competing for an auction item. While the author’s example contains some problematic details (for example, the rich consumer thinks the item is something else, which is an example of a widely recognized market failure: imperfect information), the main problem with the example is that while the author can assert the poor consumer values the item more, in real life, this can be difficult to ascertain. In some cases it is clear—a starving poor person must value a sandwich more than a person who just ate a seven course meal. But how do you know who values a flat screen TV more? Just because that guy who lives in his parents’ basement says there is no way a millionaire could value a TV more than he does doesn’t mean it’s true.
Attempting to assign more utility to the same dollar value creates problems. Measuring welfare differently for each consumer ignores the supplier. While selling a flat screen TV to the basement boy for $50 instead of to the millionaire for $5000 might result in more welfare for the consumer, what about the supplier who just lost $4950? To the supplier, $1 is $1, whether it comes from basement boy or the millionaire. Even if the welfare gain to the consumer is enough to outweigh what the supplier lost, there are also incentives to consider. Economics often has to make trade-offs between what is immediately welfare maximizing and incentives. Using dollars to measure welfare gives people incentive to produce things that are valuable to other members of society. Society doesn’t value basement boy’s couch-warming service. It does value whatever good or service the millionaire (or his grandfather) provided. When we use dollars to measure values, we are measuring in units of value to society as a whole, not to individuals.
In some cases, trying to take some of these effects into account may make sense. Imagine trying to measure GDP, taking declining returns to income. One could argue that that would be a useful measurement, as it might capture welfare gains from using what we produce more equitably. Instead of just estimating the market price of every good and service produced in the economy (quite a task in itself), we’d have to track who consumed each good and service, then try to figure out where that spending ranked on that consumer’s priority list. Have fun doing this for exports!!
None of these points are intended to refute the argument that welfare is imperfectly accounted for in economics. They are merely intended to explain why economics measures welfare in a way that can seem callous: it’s the best we’ve come up with so far.
In addition to the fact that economics cannot perfectly capture welfare, there are things that economics cannot capture at all: morals. Economists can tell us the cost of providing food stamps, subsidized housing, or free education; we as a society must decide if we think that cost is enough to justify allowing some of our population to have inadequate food, shelter, or education. Economists can tell us the costs of measures to protect endangered species; we must decide if those costs outweigh the costs of losing one of earth’s creations forever. Economists can tell you the economic benefits of legal abortion; we must decide if aborting an embryo is wrong. Economists believe that we should make informed decisions, and try to provide as much information as possible about the economic costs and benefits of each alternative. It may or may not be true that economists value helping poor people less than the average citizen (however, I would note that economists who vote Democratic outnumber those who vote Republican by 2.5 to 1, suggesting that economists support social safety net programs as a rate higher than the general population). But if society decides that helping poor people is not worth the costs estimated by economists, then perhaps society needs to look critically not only at economics, but its own values.
3/15/2010 06:15:31 am
I knew you could make an interesting and enlightening post from that article! This made a lot more sense to me than Mr. Moss's article (I admire a lot of his work and certainly his general aims, but I've found his arguments to be all over the place w/r/t economics. Case in point, his follow-up post: http://createquity.com/2010/03/economicsitis-a-response.html)
3/15/2010 08:06:46 am
Yes, the follow-up is a bit rambling, but in his defense, I think the responses to his original post were partly to blame. They chose to nit-pick about his examples, which prompted him to reply point by point, rather that address the fundamental question: given that we know that income disparities mean that the price a person is willing (and able) to pay for a good is not a perfect proxy for welfare, are economic models still useful, and was does it say about economists and society that we use these models?
3/15/2010 08:07:45 am
Yes, the follow-up is a bit rambling, but in his defense, I think the responses to his original post were partly to blame. They chose to nit-pick about his examples, which prompted him to reply point by point, rather that address the fundamental question: given that we know that income disparities mean that the price a person is willing (and able) to pay for a good is not a perfect proxy for welfare, are economic models still useful, and what does it say about economists and society that we use these models?
9/26/2013 02:35:22 pm
Great blog, I'm great I found Weebly!
10/16/2013 08:01:14 pm
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I have worked in economic policy and research in Washington, D.C. and Ghana. My husband and I recently moved to Guyana, where I am working for the Ministry of Finance. I like riding motorcycle, outdoor sports, foreign currencies, capybaras, and having opinions.